Making liquid suspension type light valve film
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United States of America Patent
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Apr 25, 1995
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N/A
app pub date -
Jan 8, 1993
filing date -
Jan 10, 1992
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Abstract
A film for a light valve is made by phase separation of a mixture comprising a homogeneous polymeric solution and a liquid suspension of light-polarizing particles. Uniform liquid-suspension droplets in a polymeric matrix are formed by phase separation processing, e.g., by polymerization or solvent evaporation. Such simple, one-step processing results in cost reduction in display and window applications. Sealing problems of conventional light valves are alleviated.
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